Download KDZ_FW_UPDATE.zip and extract it,then open the folder where you extracted it and Start KDZ_FW_UPDATE_EN with Administrator Rights (Right Click on file and select Run As Administrator)

Once the program started, in Type select 3GQCT and in Phone Mode select EMERGENCY, then in KDZ File select the downloaded firmware and press open.

Make Sure your Phone is connected to the computer in EMERGENCY MODE( Remove the battery from the phone,then while pressing Vol+ Connect the usb to the computer,a yellow screen must come up showing EMERGENCY)